@keyframes dog {
  0% {
    background: url(../images/dog1.png) no-repeat;
  }
  9% {
    background: url(../images/dog2.png) no-repeat;
  }
  18% {
    background: url(../images/dog3.png) no-repeat;
  }
  27% {
    background: url(../images/dog4.png) no-repeat;
  }
  36% {
    background: url(../images/dog5.png) no-repeat;
  }
  45% {
    background: url(../images/dog6.png) no-repeat;
  }
  54% {
    background: url(../images/dog7.png) no-repeat;
  }
  63% {
    background: url(../images/dog8.png) no-repeat;
  }
  72% {
    background: url(../images/dog9.png) no-repeat;
  }
  81% {
    background: url(../images/dog10.png) no-repeat;
  }
  90% {
    background: url(../images/dog11.png) no-repeat;
  }
  100% {
    background: url(../images/dog12.png) no-repeat;
  }
}
